as goofy as it may sound dave, i find that preamp shields often will RING themselves like bells or cause a tunneling effect to the tube which on my amps sometimes makes the tube ring MORE.... I always like them off, i play loud and sometimes at the volumes i play and with the gain i use I find the amp will ring with them on , as soon as i take them off it goes away. Go figure! Weird stuff...
I have found that my amp sounds better when I remove BOTH the preamp covers and then the tubes.... The amp's a lot quieted and doesn't feedback at all....
And if you CRYOGENICALLY treat your fuses (and picks) the amp will sing!!
Well I finally tried this on my Friedman Plexi and Dave your right it does change the tone when I remove the tube covers. Better?....worse?.....not sure, but the amp's tone definately became brighter, slightly louder, and in your face. Pretty cool.
Well I finally tried this on my Friedman Plexi and Dave your right it does change the tone when I remove the tube covers. Better?....worse?.....not sure, but the amp's tone definately became brighter, slightly louder, and in your face. Pretty cool.
Well I finally tried this on my Friedman Plexi and Dave your right it does change the tone when I remove the tube covers. Better?....worse?.....not sure, but the amp's tone definately became brighter, slightly louder, and in your face. Pretty cool.